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-rw-r--r--servo/tests/unit/style/properties/mod.rs66
1 files changed, 66 insertions, 0 deletions
diff --git a/servo/tests/unit/style/properties/mod.rs b/servo/tests/unit/style/properties/mod.rs
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+++ b/servo/tests/unit/style/properties/mod.rs
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+use cssparser::{Parser, ParserInput};
+use style::context::QuirksMode;
+use style::parser::ParserContext;
+use style::stylesheets::{CssRuleType, Origin};
+use style_traits::{ParsingMode, ParseError};
+
+fn parse<T, F>(f: F, s: &'static str) -> Result<T, ParseError<'static>>
+where
+ F: for<'t> Fn(
+ &ParserContext,
+ &mut Parser<'static, 't>,
+ ) -> Result<T, ParseError<'static>>
+{
+ let mut input = ParserInput::new(s);
+ parse_input(f, &mut input)
+}
+
+fn parse_input<'i: 't, 't, T, F>(f: F, input: &'t mut ParserInput<'i>) -> Result<T, ParseError<'i>>
+where
+ F: Fn(&ParserContext, &mut Parser<'i, 't>) -> Result<T, ParseError<'i>>,
+{
+ let url = ::servo_url::ServoUrl::parse("http://localhost").unwrap();
+ let context = ParserContext::new(
+ Origin::Author,
+ &url,
+ Some(CssRuleType::Style),
+ ParsingMode::DEFAULT,
+ QuirksMode::NoQuirks,
+ None,
+ None,
+ );
+ let mut parser = Parser::new(input);
+ f(&context, &mut parser)
+}
+
+macro_rules! assert_roundtrip_with_context {
+ ($fun:expr, $string:expr) => {
+ assert_roundtrip_with_context!($fun, $string, $string);
+ };
+ ($fun:expr, $input:expr, $output:expr) => {{
+ let serialized = parse(|context, i| {
+ let parsed = $fun(context, i)
+ .expect(&format!("Failed to parse {}", $input));
+ let serialized = ToCss::to_css_string(&parsed);
+ assert_eq!(serialized, $output);
+ Ok(serialized)
+ }, $input).unwrap();
+
+ let mut input = ::cssparser::ParserInput::new(&serialized);
+ let unwrapped = parse_input(|context, i| {
+ let re_parsed = $fun(context, i)
+ .expect(&format!("Failed to parse serialization {}", $input));
+ let re_serialized = ToCss::to_css_string(&re_parsed);
+ assert_eq!(serialized, re_serialized);
+ Ok(())
+ }, &mut input).unwrap();
+ unwrapped
+ }}
+}
+
+mod scaffolding;
+mod serialization;